JP7351377B2 - Radiography equipment and radiology image diagnosis system - Google Patents

Description

The present invention relates to a radiographic apparatus and a radiographic image diagnosis system.

Noise is generated inside electronic devices that generate image data or display images based on image data due to various factors. Such noise causes a reduction in the quality of the displayed image and causes artifacts in the image.
Therefore, various techniques have been proposed to reduce the effects of noise that electronic devices receive when generating or displaying image data.
For example, Patent Document 1 describes how to display a high-quality image that is not affected by voltage fluctuations by changing the output timing of a video signal when the voltage applied to a light emitting element in a pixel fluctuates. This document describes image display devices that can be used.

Japanese Patent Application Publication No. 2015-018138

One type of electronic equipment that generates images is a portable radiographic apparatus that generates radiographic images. In recent years, portable radiography equipment has become more and more equipped with wireless communication functions due to the need to improve portability and handling, as well as to increase the degree of freedom in configuring radiographic imaging systems including radiography equipment. It is becoming common.
In order to equip a portable radiographic imaging device with a wireless communication function, it is necessary to install a wireless device. is defined in advance. In other words, since there is limited space to store a wireless device inside a portable radiographic imaging device, when installing a wireless device, it must be placed close to the image generation unit that generates image data. There are many cases where it is not possible.

When transferring large data such as image data, a typical wireless device divides the data into multiple packets and alternates between sending the packet and receiving response information indicating that the packet has been received. repeat.
Furthermore, since a wireless device consumes more power during transmission than during reception, repeated transmission and reception causes fluctuations in the current flowing through the wiring that connects the power supply circuit and the wireless device. This current fluctuation causes a fluctuation in the magnetic field around the wiring, and the magnetic field fluctuation causes noise in an image generating unit disposed close to each other, thereby degrading the image quality of the generated radiographic image.

However, when the technology described in Cited Document 1 is applied to a radiation imaging apparatus, it is possible to suppress the generation of noise caused by voltage fluctuations in the image generation unit, but noise caused by wireless devices placed nearby can be suppressed. Therefore, it is not possible to deal with noise generated in the image generation unit.
On the other hand, a possible countermeasure is to interpose a countermeasure member such as a high magnetic permeability sheet between the sensor section and the wireless device, but space is limited in a portable radiographic apparatus. Therefore, in order to arrange the countermeasure member in a portable radiation imaging apparatus, the size of the housing must be increased, and if this is done, it becomes impossible to store it in an existing imaging stand or the like.
Further, when such countermeasure members are used, the number of parts used increases, which increases the manufacturing cost of the radiographic apparatus.
Another possible measure is to restrict the transfer of image data while image data is being generated, but if this is done, the display of radiographic images at the image data transfer destination (for example, a console) will be limited to the image data. It will be slower because generation and transfer cannot be performed in parallel.

The present invention has been made in view of the above-mentioned problems, and it is possible to reduce noise without installing a countermeasure member inside to prevent the influence of noise in a radiographic apparatus that transfers image data of radiographic images using a wireless device. The purpose is to enable image data of unaffected radiation images to be transferred in a short time.

In order to solve the above problems, the radiographic apparatus of the present invention includes:
an image generation unit that generates image data of a radiation image according to radiation;
a communication unit having a wireless device that wirelessly transmits and receives data to and from other devices;
a control unit that controls the image generation unit and the communication unit;
comprising a power supply unit that supplies power to at least the communication unit,
The communication unit includes a power adjustment unit that adjusts a change in power consumed by the communication unit over time at least while the image generation unit is generating image data,
The period during which the image generation unit generates image data is a period from the start of charge accumulation to the completion of generation of image data,
The communication unit is characterized in that it has a power save time during which power consumption is lower than during transmission and reception during at least part of the period in which the image data is not generated.

According to the present invention, image data of a radiation image that is not affected by noise can be transferred in a short time without arranging a countermeasure member for preventing the influence of noise.

1 is a block diagram showing a radiation image diagnosis system according to an embodiment of the present invention. FIG. 2 is a perspective view of a radiographic apparatus included in the radiographic image diagnosis system of FIG. 1. FIG. FIG. 3 is a block diagram showing the radiographic apparatus of FIG. 2. FIG. 3 is a sectional view taken along line IV-IV in FIG. 2. FIG. FIG. 3 is a block diagram illustrating a part of the electrical configuration included in the radiographic apparatus of FIG. 2. FIG. 3 is a flowchart showing state transitions of the radiographic apparatus shown in FIG. 2. FIG. (a) is a graph showing the power consumption of the communication unit when the conventional radiography apparatus transfers image data, and (b) is a graph showing the power consumption of the communication unit when the radiography apparatus according to the present embodiment transfers image data. It is a graph showing electric power.

Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to what is illustrated in the drawings.

[Configuration of radiographic imaging system]
First, the schematic configuration of the radiation image diagnosis system according to this embodiment will be described. FIG. 1 is a block diagram showing the configuration of a radiation image diagnosis system 100 of this embodiment.
As shown in FIG. 1, the radiation image diagnosis system 100 includes a radiation generating device 100a, a radiation imaging device 100b, and a console 100c.

The radiographic image diagnosis system 100 includes a hospital information system (HIS), a radiology information system (RIS), a picture archiving and communication system (PACS), and an image storage system (not shown). It may also be possible to connect to an analysis device or the like.

Although not shown, the radiation generator 100a generates a voltage according to preset radiation irradiation conditions (tube voltage, tube current, irradiation time (mAs value), etc.) based on the pressing of the irradiation instruction switch. The radiation source includes a generator that applies a voltage, and a radiation source that generates a dose of radiation (for example, X-rays) corresponding to the applied voltage when a voltage is applied from the generator.
The radiation generating device 100a is configured to generate radiation R (for example, X-rays) in a manner according to the radiographic image (still image/video) to be photographed.

Note that the radiation generating apparatus 100a may be installed in the imaging room, or may be configured to be movable together with the console 100c and the like, called a rounds car.

The radiation imaging apparatus 100b is configured to generate image data of a radiation image according to the dose of radiation received.
Furthermore, the radiographic apparatus 100b includes a communication section 3, and can transfer generated image data to the console 100c via the communication section 3.
Note that details of the radiation imaging apparatus 100b will be described later.

The console 100c is configured by a PC, a mobile terminal, or a dedicated device.
The console 100c also includes a communication section 7 and a display section 8.
The communication unit 7 is capable of wirelessly receiving image data of a radiation image from the radiation imaging apparatus 100b.
The display unit 8 is capable of displaying a radiation image based on the received image data.

Furthermore, the console 100c has a function of setting various imaging conditions (tube voltage, tube current, irradiation time (mAs value), frame rate, etc.) for at least one of the radiation generating device 100a and the radiation imaging device 100b. There is.
Furthermore, the console 100c has a function of instructing at least one of the radiation generating device 100a and the radiation imaging device 100b to take a radiation image (radiation irradiation, charge accumulation/readout) when the irradiation instruction switch is pressed. ing.
The console 100c also has a function of transmitting an image data transfer command to the radiation imaging apparatus 100b in response to a predetermined operation (for example, pressing an irradiation instruction switch, etc.), and terminates the image data transfer upon completion of the image data transfer. It has a function of transmitting commands to the radiation imaging apparatus 100b.

In this embodiment, the radiation image diagnosis system 100 is provided with the console 100c, but instead of the console 100c, an image display device having only the function of receiving image data and the function of displaying a radiation image is provided. (The setting of photographing conditions, the photographing instructions, and the sending and receiving of commands may be performed from another device.)
Furthermore, instead of the console 100c, an image analysis device that performs predetermined image processing on received image data may be provided.
Further, although FIG. 1 illustrates a state in which the radiation imaging apparatus 100b and the console 100c are in direct wireless communication, it is also possible to arrange an AP (access point) (not shown) and communicate via the AP. good.

[Configuration of radiography equipment]
Next, the configuration of the radiation imaging apparatus 100b included in the radiation image diagnosis system 100 will be described. 2 is a perspective view of the radiographic apparatus 100b, FIG. 3 is a block diagram showing the radiographic apparatus 100b, and FIG. 4 is a sectional view taken along the line IV-IV in FIG.
Although FIG. 2 shows a panel-shaped portable radiographic apparatus as an example of the radiographic apparatus 100b, the present invention is applicable to a so-called stationary radiographic apparatus that is integrally formed with a support stand or the like. is also applicable.

As shown in FIGS. 2 to 4, the radiographic apparatus 100b includes a housing 1, an image generation section 2, a communication section 3, a storage section 4, and a control section 5, which are housed in the housing 1. , and a power supply section 6.
Each part 1 to 6 is electrically connected.

The housing 1 according to this embodiment is formed into a thin box shape (panel shape), and one of the plurality of surfaces serves as the radiation entrance surface 11.
Further, as shown in FIG. 2, a power switch 12, various operation switches 13, an indicator 14, a connector 15, etc. are provided on the side surface of the housing 1 adjacent to the radiation incident surface.

The image generation section 2 includes a scintillator 21, a sensor section 22, a scan drive section 23, and a readout section 24.
Each part 22 to 24 except the scintillator 21 is electrically connected.

The scintillator 21 is formed into a flat plate shape using, for example, columnar crystals of CsI.
When the scintillator 21 receives radiation, it emits electromagnetic waves having a longer wavelength than the radiation (for example, visible light) with an intensity corresponding to the dose of the radiation received.
Furthermore, as shown in FIG. 4, the scintillator 21 is disposed within the housing 1 so as to extend parallel to the radiation entrance surface 11.

The sensor unit 22 has a plurality of pixels arranged in a two-dimensional manner, each having a detection element that generates an amount of charge according to the intensity of the electromagnetic wave generated by the scintillator 21, and a switch element provided between each detection element and wiring. It has a printed circuit board.
Further, the sensor section 22 is disposed on the opposite side of the scintillator 21 from the side where the radiation entrance surface 11 is present, so as to extend parallel to the radiation entrance surface 11 and the scintillator 21 .

The scan drive section 23 is configured to turn on/off each switch element.

The reading unit 24 reads out the amount of charge accumulated in each pixel as a signal value, and generates image data of a radiation image based on each signal value.

The communication unit 3 is composed of, for example, a wireless module.
The communication unit 3 is configured to wirelessly transmit and receive data and signals to and from other devices (for example, the console 100c).
In addition, the communication section 3 is provided close to the sensor section 22 because the size of the housing 1 (particularly the radiation entrance surface 11) needs to be such that it can be stored in an existing imaging stand etc. (to conform to the JIS standard). ing. In this embodiment, for example, as shown in FIG. 3, the sensor section 22 is arranged so as to be in contact with the surface of the sensor section 22 on the side opposite to the side where the scintillator 21 is present.
Details of this communication section 3 will be described later.

The storage unit 4 is composed of an HDD (Hard Disk Drive), a semiconductor memory, and the like, and stores processing programs for executing various processes, parameters necessary for executing the processing programs, files, and the like.
Note that the storage unit 4 may be configured to be able to store image data of generated radiation images.

The control unit 5 includes a CPU (Central Processing Unit) and a RAM (Random Access
Memory).
Then, the CPU reads various processing programs stored in the storage unit 4, expands them to the RAM, and executes various processes according to the processing programs, thereby allowing the radiation imaging apparatus 100b including the image generation unit 2 and the communication unit 3 to The operation of each part is controlled in an integrated manner.

The power supply unit 6 includes a battery 61 and a power supply circuit 62 for the communication unit 3.
Further, the power supply unit 6 according to the present embodiment includes a power supply circuit for the image generation unit 2 (not shown).
The power supply section 6 is configured to supply power to each section of the radiation imaging apparatus 100b including at least the communication section 3.

[Composition of communication department]
Next, a specific configuration of the communication section 3 included in the radiographic apparatus 100b will be described. FIG. 5 is a block diagram showing a part of the electrical configuration (mainly the communication unit 3) included in the radiation imaging apparatus 100b.

The communication unit 3 includes a substrate 31, a wireless device 32, and a power adjustment unit 33, as shown in FIG.

The wireless device 32 wirelessly transmits and receives various data and commands to and from other devices (for example, the console 100c).
Furthermore, when transferring large-sized data such as image data, the wireless device 32 according to the present embodiment divides the data into a plurality of packets, sends the packet, and sends response information indicating that the packet has been received. Receiving and receiving are repeated alternately.
Furthermore, the wireless device 32 is connected to the power supply unit 6 (power supply circuit 62) via a power adjustment unit 33 (monitor unit 33b described later).
Additionally, the wireless device 32 consumes different amounts of power when transmitting and receiving data. Specifically, relatively little power is consumed when receiving, and more power is consumed when transmitting than when receiving.
Hereinafter, the power consumed by the wireless device 32 when receiving data will be referred to as first power, and the power consumed when transmitting data will be referred to as second power.
Note that the second power does not need to be the power consumed during transmission, and may be greater than the first power as long as it does not exceed the power consumed during transmission.

The power adjustment section 33 according to this embodiment includes a power consumption section 33a, a monitor section 33b, an AND circuit 33c, and a switch section 33d.

The power consumption section 33a is connected to the power supply section 6 (power supply circuit 62) in parallel with the wireless device 32 via the switch section 33d.
Further, the power consumption unit 33a is configured to consume differential power that is the difference between the second power and the first power.

The monitor unit 33b is configured to measure the power consumed by the wireless device 32 (current flowing through the wiring connecting the power supply circuit 62 and the wireless device 32).
Furthermore, the monitor unit 33b outputs a control signal to the AND circuit 33c, and the control signal is switched between High and Low depending on the measured power consumption of the wireless device 32. Specifically, the control signal is set to Low while the power consumption of the wireless device 32 is the second power (power consumption during transmission), and the control signal is set to Low while the power consumption of the wireless device 32 is the first power (power consumption during reception). Set the signal to High.
Note that the monitor section 33b may not be provided on the substrate 31 (or may be provided outside the communication section 3).

AND circuit 33c has two input terminals and one output terminal.
The AND circuit 33c has one input terminal inputted with a control signal from the control section 5, and the other input terminal inputted with a control signal from the monitor section 33b.
Furthermore, the AND circuit 33c outputs a control signal from its output terminal to the switch section 33d, and switches the output signal between High and Low depending on the control signals input to the two input terminals. Specifically, while the control signal input from the control unit 5 is High and the control signal input from the monitor unit 33b is High, the output control signal is set to High, and at other times, the output control signal is set to High. Set the output control signal to Low.

The switch section 33d is configured to switch ON/OFF according to a control signal input from an AND circuit 33c. Specifically, it is turned on while the control signal input from the AND circuit 33c is High, and turned off while it is Low.
As described above, the power consumption section 33a is connected in parallel to the wireless device 32 via the switch section 33d.

Furthermore, the communication unit 3 in this embodiment is arranged such that the wireless device 32 and the power consumption unit 33a are close to the power supply unit 6 (power supply circuit 62).
Specifically, one end of the substrate 31 on which the wireless device 32 and the power consumption section 33a are mounted is arranged adjacent to the power supply circuit 62.
Therefore, when the wireless device 32 and the power consumption section 33a are not close to the power supply circuit 62, It is shorter than . Moreover, this makes it difficult for the magnetic field to fluctuate due to a fluctuation in the current even if the current fluctuates inside the communication section 3 .

[Operations and effects of radiographic equipment]
Next, the operation and effects of the radiation imaging apparatus 100b will be explained. FIG. 6 is a flowchart showing the state transition of the radiation imaging apparatus 100b, FIG. 7(a) is a graph showing the power consumption of the communication unit when a conventional radiation imaging apparatus transfers image data, and FIG. 7(b) is a graph showing the power consumption of the communication unit when the conventional radiation imaging apparatus transfers image data. 3 is a graph showing the power consumption of the communication unit 3 when the radiation imaging apparatus 100b according to the embodiment transfers image data.

The control unit 5 according to the present embodiment configured as described above has a function of generating image data of a radiation image according to the dose of the radiation R received on the radiation entrance surface 11, for example.
Specifically, first, the scan drive unit 23 turns off the switch element to accumulate the charges generated by each detection element in each pixel, and then the scan drive unit 23 turns on the switch element to accumulate the charges generated by each detection element. The generated charge is output to the readout circuit. Then, the reading unit 24 is caused to read out the signal value of each pixel, and further to generate image data based on the plurality of signal values.

The control unit 5 also has a function of transmitting and receiving commands to and from other devices (for example, the console 100c) via the communication unit 3.
Furthermore, the control unit 5 has a function of transferring the generated image data to another device via the communication unit 3.

Furthermore, the control unit 5 has a function of transitioning the operating state of the radiation imaging apparatus 100b. Note that this state transition is performed in parallel with the generation of image data.

First, when the power switch 12 is turned on, the radiation imaging apparatus 100b transitions to an image data non-transfer state as shown in FIG. 6 (step S1).

In this state, the control section 5 first supplies standby current to the communication section 3 using the power supply circuit 62 .
Further, the control unit 5 sets the control signal output to the AND circuit 33c to Low.
Further, when the wireless device 32 is transmitting data (the power consumption is the second power), the monitor unit 33b sets the control signal output to the AND circuit 33c to Low, and receives the data. In the case (the power consumption is the first power), the control signal is set to High.
Since the control signal input from the control section 5 is Low, the AND circuit 33c in this state outputs a Low output signal to the switch section 33d regardless of the control signal input from the monitor section 33b. Therefore, the switch section 33d in this state is in a non-conductive state, and all of the power from the power supply circuit 62 is supplied to the wireless device 32 without being supplied to the power consumption section 33a.

Furthermore, the control unit 5 in this state monitors the reception status of image data transfer commands from other devices (for example, the console 100c). Specifically, the determination as to whether or not an image data transfer command has been received (step S2) is repeated.
That is, this image data non-transfer state continues until the control unit 5 determines that an image data transfer command has been received.

In the image data non-transfer state, when the control unit 5 determines that an image data transfer command has been received (the wireless device 32 starts transmitting data, step S2: Yes), the radiation imaging apparatus 100b transfers the first image data. Transition to the transfer state (step S3).

The control unit 5 in this state causes the image generation unit 2 to generate image data.
The control unit 5 uses the power supply circuit 62 to supply current to the communication unit 3 during data transfer.
Further, the control unit 5 sets the control signal output to the AND circuit 33c to High.
Furthermore, in this state, since the wireless device 32 transmits data, the power consumption measured by the monitor section 33b becomes the second power, and the monitor section 33b sets the control signal output to the AND circuit 33c to Low.
In this state, even if the control signal input from the control section 5 is High, the control signal input from the monitor section 33b is Low, so the AND circuit 33c outputs the output signal to the switch section 33d to Low. do. Therefore, the switch section 33d in this state is turned off, and all the power from the power supply circuit 62 is supplied to the wireless device 32 without being supplied to the power consumption section 33a.
That is, the control unit 5 switches the switch unit 33d to a non-conducting state (OFF) when the power measured by the monitor unit 33b is the second power.

Note that in this state, the power consumed by the communication unit 3 as a whole becomes the power consumed by the wireless device 32 during transmission (second power).

This first image data transfer state continues while the wireless device 32 is transmitting data (while the power consumption of the wireless device 32 measured by the monitor unit 33b is the first power).

When the first image data transfer state of the wireless device 32 ends (the power consumption of the wireless device becomes the first power, step S4: Yes), the radiation imaging apparatus 100b transitions to the second image data transfer state (step S5).

Even in this state, the control unit 5 causes the image generation unit 2 to generate image data.
Further, the control unit 5 uses the power supply circuit 62 to supply current to the communication unit 3 during data transfer.
Further, even in this state, the control unit 5 sets the control signal output to the AND circuit 33c to Hi.
Make it gh.
Furthermore, in this state, since the wireless device 32 receives data, the power consumption measured by the monitor section 33b becomes the first power, and the monitor section 33b sets the control signal output to the AND circuit 33c to High.
In this state, the AND circuit 33c outputs a high output signal to the switch section 33d because both the control signal input from the control section 5 and the control signal input from the monitor section 33b are high. Therefore, the switch section 33d in this state is turned on, and power from the power supply circuit 62 is supplied not only to the wireless device 32 but also to the power consumption section 33a.
That is, the control unit 5 switches the switch unit 33d to a conductive state (ON) when the power measured by the monitor unit 33b is the first power.

As described above, the power consumption unit 33a according to the present embodiment is configured to consume differential power that is the difference between the second power and the first power.
Therefore, in this state, the power consumed by the communication unit 3 as a whole is: power consumption of the wireless device 32 during reception (first power) + power consumption of the power consumption unit 33a (second power - first power) = This is the power consumption (second power) of the wireless device 32 during transmission, and is equal to the power consumption of the entire communication section 3 in the first image data transfer state.

This second image data transfer state continues while the wireless device 32 is receiving data (while the power consumption of the wireless device 32 measured by the monitor unit 33b is the second power).

Furthermore, the control unit 5 in this state monitors the reception status of the image data transfer end command from another device (for example, the console 100c). Specifically, the determination as to whether or not the image data transfer end command has been received (step S6) is repeated.
When transferring image data, the wireless device 32 repeats data transmission and reception, so the first image data transfer state and the second image data transmission state are changed when the control unit 5 receives an image data transfer end command. The process is repeated alternately until a decision is made.

By alternately repeating the first image data transfer state and the second image data transmission state, the power adjustment unit 33 adjusts the power consumption of the communication unit 3 at least while the image generation unit 2 is generating image data. The change over time is adjusted so that the power consumed by the wireless device 32 when transmitting data becomes constant.
Note that if the second power is set lower than the power consumption during data transmission, the power consumption of the communication unit 3 will be reduced when the first image data transfer state and the second image data transmission state are alternately repeated. It will not be constant. However, since the second power is closer to the power consumption during data transmission than the first power, the change over time in the power consumed by the communication unit 3 is constant compared to the case where the power adjustment unit 33 is not provided. It will be adjusted so that it approaches .

When the control unit 5 determines that the image data transfer end command has been received in the first image data transfer state or the second image data transfer state (step S6; Yes), the radiation imaging apparatus 100b transitions to the image data non-transfer state. do.

General wireless devices, including the wireless device 32 according to this embodiment, repeat transmission and reception when transferring large-sized image data.
Furthermore, as described above, the power consumption of the communication unit differs between transmission and reception as shown in FIG. 7A, so the emitted magnetic field changes as the current increases or decreases.
If the distance between the image generation unit and the wireless device is long, the effect of this change in the magnetic field on the image data becomes negligible. However, if there is a restriction on the size of the housing (the radiation imaging apparatus 100b is a portable type as in this embodiment), the wireless device 32 may be placed close to the image generation unit 2 as shown in FIG. Therefore, when the image generation unit 2 generates image data, it is affected by fluctuations in the magnetic field, resulting in horizontal streaks in the radiographic image.

However, in the radiation imaging apparatus 100b according to the present embodiment, the power consumption of the communication unit 3 in the second image data transfer state (when the wireless device 32 receives data) is lower than that in the first image data transfer state ( The second power consumption is equal to the power consumption of the communication unit 3 (when the wireless device 32 transmits data), that is, the power consumption of the communication unit 3 is constant at the second power throughout the transfer period. Therefore, since there is no change in the current flowing through the wiring and no change in the magnetic field due to the change, no noise is generated in the image generation section that generates image data in parallel when image data is transferred. As a result, it is possible to prevent horizontal streaks from occurring in the radiation image displayed on the display unit 8 of the console 100c to which the image data is transferred.

Further, since no horizontal streaks appear in the radiation image even if image data generation and image data transfer are performed in parallel, there is no need to take measures such as restricting image data transfer while the radiation image is being generated. Therefore, it is possible to prevent the display of the radiation image on the console 100c from being delayed due to the inability to generate image data and transfer the image data in parallel.
Furthermore, since there is no need to arrange a countermeasure member such as a high magnetic permeability sheet between the image generation section 2 and the communication section 3, there is no need to enlarge the casing 1 in order to secure the arrangement space. The increase in manufacturing costs can be suppressed by not increasing the number of parts.
That is, according to the radiographic apparatus 100b according to the present embodiment, image data of a radiographic image that is not affected by noise can be transferred in a short time without placing a countermeasure member inside to prevent the influence of noise. can.

Furthermore, the radiation imaging apparatus 100b according to the present embodiment drives the power adjustment unit 33 only in the first image data transfer state and the second image data transfer state in which generation and transfer of image data are performed in parallel. That is, the power adjustment unit 33 is not driven in a state where image data is not being transferred (no noise is added to the image data even if the power consumption of the wireless device 32 fluctuates) in which image data is not generated. Therefore, the battery 61 can last longer by the amount that the power consumption section 33a does not consume power during the period when the image data is not transferred.

Although the present invention has been specifically described above based on the embodiments, it goes without saying that the present invention is not limited to the above embodiments and can be modified as appropriate without departing from the gist thereof.

For example, in the above embodiment, the combination of the radiation imaging apparatus 100b and the console 100c was explained as an example, but the present invention is applicable to all electronic devices that wirelessly transmit and receive image data and electrically generate or display images. It is possible to do so. That is, it is also applicable to combinations of digital cameras, PCs, tablet terminals, etc.

Further, in the above embodiment, the ON/OFF of the switch section 33d is switched using the AND circuit 33c, but the control section 5 detects the state of the wireless device 32, and the control section 5 switches the switch section 33d. may be performed directly.

100 Radiation image diagnosis system 100a Radiation generator 100b Radiography device 1 Housing 11 Radiation entrance surface 12 Power switch 13 Operation switch 14 Indicator 15 Connector 2 Image generation unit 21 Scintillator 22 Sensor unit 23 Scanning drive unit 24 Reading unit 3 Communication unit 31 Board 32 Wireless device 33 Power adjustment section 33a Power consumption section 33b Monitor section 33c Switch section 33d AND circuit 4 Storage section 5 Control section 6 Power supply section 61 Battery 62 Power supply circuit 100c Console 7 Communication section 8 Display section

Claims (3)

an image generation unit that generates image data of a radiation image according to radiation;
a communication unit having a wireless device that wirelessly transmits and receives data to and from other devices;
a control unit that controls the image generation unit and the communication unit;
comprising a power supply unit that supplies power to at least the communication unit,
The communication unit includes a power adjustment unit that adjusts a change in power consumed by the communication unit over time at least while the image generation unit is generating image data,
The period during which the image generation unit generates image data is a period from the start of charge accumulation to the completion of generation of image data,
The radiographic apparatus is characterized in that the communication unit has a power save time during which power consumption is lower than during transmission and reception during at least part of the period in which the image data is not generated. The radiation imaging apparatus according to claim 1, wherein the communication unit transmits the image data to the other device at least while the image generation unit is generating image data. The radiation imaging apparatus according to claim 1 or claim 2;
an image display device that wirelessly receives the image data and displays a radiation image based on the image data;
A radiation imaging diagnostic system equipped with:

Images